Invasive mussels and less nutrients from tributaries have altered the Lake Michigan ecosystem, making it more conducive to the stocking of lake trout and steelhead than Chinook salmon, according to a recent US Geological Survey and Michigan State University study.

Scientists reveal that a fault in the process that copies DNA during cell division can cause epigenetic changes that may be inherited for up-to five generations. They also identified the cause of these epigenetic changes, which is related to the loss of a molecular mechanism in charge of silencing genes. Their results will change the way we think about the impact of replication stress in cancer and during embryonic development, as well as its inter-generational inheritance.

Researchers have conducted the first large-scale experiment on a Superfund site using poplar trees fortified with a probiotic — or natural microbe — to clean up groundwater contaminated with trichloroethylene, or TCE.